In the production process of mobile phone tempered glass, edge grinding technology plays a pivotal role. It is not only related to the exquisiteness of the product's appearance, but also closely related to the practicality and safety of the glass. It is a key link to ensure product quality.
In terms of grinding accuracy, the requirements are extremely high. Due to the fine size of the mobile phone screen, tempered glass needs to be accurately adapted, and the edge grinding deviation must be controlled within a very small range, usually within 0.1 mm. This requires advanced CNC grinding equipment, which operates finely according to the preset program to ensure that the edge size of each piece of glass is uniform and consistent, so that it can fit perfectly with the mobile phone frame and avoid gaps or loose installation.
The design of the grinding arc is very knowledgeable. In order to fit the habit of human hands holding mobile phones and consider the rounded beauty of the mobile phone appearance, the glass edge is generally polished to a specific arc. This requires precise calculation and repeated testing. Different brands and models of mobile phones have different requirements for curvature. For example, some mobile phones that focus on lightness and thinness have a gentler curvature of the tempered glass edge to reduce the overall thickness perception; while gaming phones may pay more attention to the grip feel, and the curvature fits the palm more closely, making the player's operation more comfortable.
Temperature control during the grinding process is crucial. Tempered glass itself has been specially treated. If the temperature is too high during grinding, it is easy to destroy the internal stress structure and reduce the strength of the glass. Professional factories will use a cooling system to monitor the temperature of the grinding area in real time to ensure that the temperature is always maintained in an appropriate range to avoid hidden dangers such as glass self-explosion caused by overheating.
The choice of grinding materials should not be underestimated. Generally, materials such as diamond grinding wheels with high hardness and strong wear resistance are selected. These materials can not only efficiently remove the excess part of the glass edge, but also ensure the smoothness of the grinding surface, reduce subsequent processing steps, improve production efficiency, and avoid leaving scratches, scratches and other defects on the glass surface.
Quality inspection is the finishing check link of the edge grinding process. Optical testing instruments, touch evaluation and other means will be used to check whether the glass edge is flat and smooth, whether the curvature meets the standard, and whether there are any problems such as broken edges and corners. Only products that have passed strict testing can enter the subsequent packaging and sales links.
In short, the edge grinding process of mobile phone tempered glass covers many aspects such as precision, curvature, temperature, materials, and testing. Only by strictly controlling each link can we create mobile phone tempered glass products that are both beautiful, durable and safe, and meet consumers' demand for high-quality mobile phone accessories.
